Bicycle-lock



2 Sheets-Sheet 1.. L. H. CLARK 8'5 E. A. MUNGBR.

BICYCLE LOOK. No. 568,743. Patented Oct. 6, 1896.

(No Model.)

WWI x "MIME x (No Model.)' 2 Sheets-Sheet 2;

L. H. CLARK & E. A. MUNGER.

' BIGYGLE LOGK.

No. 568,743. Patented 001;. 6, 1896.

Wiigesszs UNITED STATES PATENT OFFICE.

LOUIE H. CLARK AND ERNEST A. MUNGER, OF FON D DU LAO, lVlSCONSIN,

ASSIGNORS .TO WILLIAM T. ALLEN AND ARTHUR C. EIVEN, OF BROOK- LYN, NEW YORK.

BICYCLE- LOCK.

SPECIFICATION forming part of Letters Patent No. 568,743, dated October 6, 1896.

I Application filed January 28, 1896. Serial No. 577,138. (No model.)

To all whom, it may calmer/L: and the outer one constituting a part of the Be it known that we, LOUIE H. CLARK and bicycle-frame. v

ERNEST A. MUNGER, of Fond du Lac, State of O is the lock-case, and I) is .a split ring or Wisconsin, have invented certain new and clip for holding it in place upon the bicycleuseful Improvements in Bicycle-Locks; and head. The two are connected together byan we do hereby declare the following to be a integral web which joins both. The split full, clear, and exact description of the invenring or clip is made to surround the head. A tion, such as will enable others skilled in the boss 1 projects into the hole in the outer tube art to which it appertains to make'and use A to prevent the clip or ring from turning on 10 the same. the head or other part upon which it may be Our invention relates to an improvement in applied, and the ends are held together by a combination-locks designed for Various purbolt, screw, or rivet 2 and preferably by a poses where a bolt can be used, as on drawers, screw or bolt upon the end of which a round chests, and doors in general, and more parnut 4 is turned, after which the end of the I 5 ticularly to be used on bicycles, it being apscrew or bolt is upset, so that the removal of plicable to various parts thereof, as the crankthe nut is practically impossible. hanger, therear hub, or, as preferred and as The slide-bolt 5 passes through the connectshown in the drawings, to the head of the maing-web, and it being longer than the web chine. either one end or the other always protrudes 20 The object is to provide asimple lock which either into the ring or clip or into the lock, can be quickly operated and will be eifecas the case may be, when the machine is tual in looking the parts, or more especially, locked or unlocked, and when locked the bolt when used on a bicycle, to preclude the pospreferably extends into a hole in the inner sibility of its being stolen; and with this end tube 13 of the head around at one side of the 2 5 in View it consists in certain novel features center, so that to get it into position it is necof construction and combinations of parts, essary to turn the fork way around axially, which willbehereinafter described,and p'ointthe object being to make it impossible to ed out in the claims. wheel the machine off. The slide-bolt can In the accompanying drawings, Figure 1 is only be thrown into the look when the tum- 0 a View showing our improved lock attached blers are in position to receive it, and this is to the head of a bicycle. Fig. 2 is a vertical regulated by the combination which will be sectional view through the lock and bolt. described presently. The bolt is conven- Fig. 2 is asimilar view,enlarged. Fig. 3 is iently thrown by the bolt-controlling slide 7,

a horizontal sectional View. Fig. 3 is a dewhich in the form shown straddles and is 5 tached view of the dial. Figs. i, 5, and 6 guided by the bolt 8, which holds the parts are views of the three tumblers used in the of the lock together. One end of this slide particular lock described. Fig. 7 is a view of is connected with the slide-bolt by means of one of thelargerwashers. The three used bea pin 9, projecting from the bolt into a hole ing just alike only one is shown. Figs. 8 and 10 in the slide, and the other end or some 0 9 are views of two forms of carriers. Fig. 10 part of this slide has a thumbprojection 11, go is a view of one of the small washers 1, and by means of which it is manipulated and con- Fig. 11 is a detached View of the bolt-sliding trolled. device. This much being understood we will now As we have shown our lock attached to a proceed to describe the mechanism of the 5 bicycle only, it will be described in that conlock, which it may be said in this connection 5 nection. 7 may effectually be varied in number of parts, A and B represent the outer and inner notches, &c.; but in the interest of clearness tubes, respectively, of a bicycle-head, the inwe will describe it just as we have shown it. ner one being adapted to turn in the outer The lock-case comprises the outer barrel 50 one in the usual manner in steering bicycles 12, the hollow post 13 at the center, and the loo bottom 14., with which the barrel and post are rigidly connected. Also there is a turndial 15, which forms the top. This dial may fit down into the barrel and has a central hole 16, which receives the post- 13. The dial has notches 17 at the edge at proper intervals which are to register with a mark 1S on the web which connects the lock to the clip, and these several notches on the dial are numbered consecutively, as illustrated in this particular instance, from 1 to 8. The extreme edge of the dial is normally milled to facilitate its easy manipulation. The screw or belt which passes down through the post and bottom and holds the dial in place has a round nut 20, screwed on its lower end, and the end is then upset so that its removal is practically impossible.

The mechanism of the lock is as follows: A rotary bottom tumbler 21, which just fits nicely in the barrel, is placed on the bottom of the lock-case. This tumbler has one notch 22 on the periphery, which, when thrown in position opposite the slide-bolt, will permit the bolt to be slid back into it, providing the other tumblers are all in the same position.

This tumbler is provided with a central hole 23, and from this hole as many notches 24 (eight in this instance) are formed, equally distant from each other, as there are numbers on the dial, and these are consecutively numbered from 1 to 9 in reverse order. One of these notches would Slll'llCG to make up a combination, but as it is desirable that provision be made for a change of combination, if the exigency should require it,the several notches are provided to admit of lllllSyflS will be hereinafter explained. Within the central opening 23 of this tumbler a carrier 25 is introduced. This might be an integral part of the tumbler but for the desirability of the changes in combination. This carrier has a projection 26, projecting outwardly from its periphery to enter one of the notches 2 1, according to the set of the combination. This projection 26 also extends upwardly in position to be engaged by a corresponding downwardly-extending projection 27 on the next carrier above or middle carrier 28, which travels in the path of the projection 26. This second or central carrier is also provided with an upwardly-extendin g projection 29, which is in position to be struck by a downward projection 30 on the top carrier 31, and the top carrier is furnished with an upwardlyextcnding projection 32, lying in the path of a projection on the inner face of the dial, so that these several tumblers are all turned by the movements of the dial and its depending projection 33, they being set from the bottom upward in turn and left where they are set in order until again scattered. As the tumblers are all alike only one has been described, and there is only one difference, and that being in the location of the notch 22. In the bottom tumbler it is situated between the notches numberet 5 and 6, whereas in the other two the notches are between numbers 1 and 8. Between each two tumblers the large washers 35 35 are placed. These washers have notches 36 therein to afford clearance for the bolt, and the washers are prevented from turning by a tooth 37, which enters the vertical groove 38 in the barrel. These three washersare just alike. Also there are three smaller washers interposed between the carriers. These also each have a tooth 39, which enters a groove 40 in the central hollow post. As the combination is now set the bottom carrier projection is in the notch l of the bottom tumbler, the upturned projection on the middle carrier is in notch 2 of the middle tumbler, and the upturned projection on the top carrier is in notch 3 0f the top tumbler. This particular combination operates as follows to unlock: Turn the dial four times to the left to 1, then three times to the right to 2, and finally once to the left to 3. This throws the tumblers from the bottom to the top in consecutive order, placing each notch opposite the bolt. Then it is only necessary to slide the bolt back into the notches and the machine is unlocked. To lock it, the reverse takes place. The bolt is slid forward into the holes in the tubes A and B, they being first placed in alinement, and then the tumblers are scattered by turning the dial three or four times to the right and then to the left, or vice versa, or in any way to break the combination.

The combination can be changed by setting the carrier projections in different notches, the numbers on the tumblers opposite the notches being provided to make it easy and plain to set a combination, and it will be observed that the numbers to which the dial is turned to always correspond. For instance, if the bottom carrier projection is placed in notch at of the bottom tumbler, the dial will be turned to the left four times, as before, and stopped at 4. If the next one is in 6 the dial will be turned to the right three times, as before, and stopped at 6, and so on.

It is evident that slight changes in the number of parts employed or notches used or in the location or application of our lock could be made without deviating from the spirit and scope of our invention, and hence we do not wish to limit ourselves to the exact construction herein set forth; but,

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination with the lock-ease, of rotary tumblers having notched peripheries and notched interiors, carriers located in the central openings of the tumblersand occupying the same plane, said carriers each having a projection adapted to enter one of the internal notches and project beyond the face of the carrier, a rotary dial having a projection plane of the tumbler, of a rotary dial pro Vided-with a projection adapted to engage a tumbler projection whereby to throw the tumbler, a sliding bolt, and means for operating the slide-bolt, substantially as set forth.

3. The combination with a casing, a slidebolt, and a slide connected with the bolt, said slide having an elongated slot, of a dial, rotary tumblers, a central bolt passing through the dial-tumblers, casing and slot in the slide and means for retaining the slide in place,substantially as set forth.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

LOUIE H. CLARK. ERNEST A. MUNGER. Witnesses:

M. T. SIMMONS, GEO. T. KINDER. 

